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Gridora · Spreadsheets
Open and edit Excel (.xlsx) spreadsheets in your browser.
Received an `.xlsx`, `.xls`, `.ods` or `.csv` file on a machine without Excel? Gridora opens it instantly in your browser with full formula recalculation, multi-sheet tabs, frozen panes, conditional formatting and charts — and saves back to `.xlsx` or 21 other formats.
Free with a SEMDIV account: up to 20 workbooks, 10 sheets and 100,000 cells each.
How it works
- 1
Open your spreadsheet
Drop any `.xlsx`, `.xls`, `.xlsb`, `.ods`, `.numbers` or `.csv` file into Gridora.
- 2
Analyze and edit
Edit cells, write formulas, filter columns, build charts or add a pivot table.
- 3
Save as .xlsx or PDF
Export back to Excel `.xlsx` with formulas intact, or export a formatted PDF report.
What you can do with Gridora
Opens 10+ spreadsheet formats
Supports `.xlsx`, `.xls`, `.xlsb`, `.xlsm`, `.ods`, `.fods`, `.numbers`, `.csv`, `.tsv` and `.dif`.
200+ live Excel functions
Includes `XLOOKUP`, `INDEX/MATCH`, `SUMIFS`, `LET`, `LAMBDA`, `FILTER`, `UNIQUE` and `SORT`.
Preserves styles & merges
Keeps number formats, cell colors, borders, column widths, merged cells and comments.
Exports to 22 formats
Save as `.xlsx`, `.ods`, `.csv`, `.tsv`, `.json`, `.html`, `.md`, `.tex`, `.sql` or vector `.pdf`.
Find & replace across formatted values
Search raw numbers, currency strings or formula expressions across the workbook.
Fast canvas grid
Smooth scrolling across 100,000 cells per workbook.
More Gridora workflows
Spreadsheet →
Gridora has the 200+ formulas you already know, charts that build from a selection, pivot tables that update live, and the file formats you already use. Open an Excel file, work on it, and save it back.
Pivot Tables & Charts →
Drop a raw CSV export or Excel sheet into Gridora, select your table, and summarize thousands of rows with a live Pivot Table or a 1-click chart. Whenever your underlying data changes, your pivot table and charts update automatically.
CSV / ODS / Numbers to Excel & PDF →
Gridora is the universal Swiss Army knife for tabular data. Open a raw CSV, an OpenDocument `.ods` sheet or an Apple `.numbers` file, inspect and clean the rows with Flash Fill and formulas, and export to 22 different spreadsheet, developer and document formats.
Questions about Gridora
Are my Excel formulas preserved when I save back to .xlsx?
Yes. Gridora exports standard Excel formulas (including modern functions like `LET` and `XLOOKUP`) so they continue calculating in desktop Excel.
Can I convert an Apple Numbers or LibreOffice .ods file to Excel .xlsx?
Yes. Open the `.numbers` or `.ods` file in Gridora and click Export → Excel (`.xlsx`).